O P Malhotra, S K Gupta and, Anubhuti Gangal Solutions for Chapter: Model Test Paper, Exercise 1: MODEL TEST PAPER

What should be added to the sum of $\frac{11}{18}$ and $\frac{-1}{9}$ to get $1$?

Let $A=$ set of the letters of the word '$FLOW$' and $B=$ set of the letters of the word '$FOLLOW$', then $A \mathrm{and} B$ are 

Subtract the sum of $2a^2+5ab-b^2$ and $-3a^2-ab+2b^2$ from $a^2+4ab+b^2$.

Find $x$, if ${\left(\frac{3}{7}\right)}^{15}÷{\left(\frac{3}{7}\right)}^9={\left(\frac{3}{7}\right)}^{4x-10}$

Monthly salaries of Rupal and Kanak are $₹20,000$ and $₹25,000$ respectively.

(i) By what per cent is Rupal's salary less than Kanak's salary? 

(ii) By what per cent is Kanak's salary more than Rupal's salary?

Solve: $3 - 2x\ge x-17; x\in w$

The simple interest on $₹800$ when invested at a certain rate of interest p.a for $4$ years is equal to that on $₹625$ when invested for $8$ years at a rate of $4\%$ p.a. find the rate of interest p.a. in the first case?

What will be the marked price of an article, if it is sold for $₹228$ after allowing a discount of $5\%$?